Claude Code Opus 5

Claude Opus 5 is Anthropic's flagship model, engineered for complex, long-running agentic coding and enterprise tasks.

Claude Opus 5, released by Anthropic on July 24, 2026, is a powerful agentic coding model designed for intricate, multi-step work. It excels at understanding large codebases, maintaining context across complex tasks, and precisely defining requirements for feature development and bug fixing. Available via the Claude API (claude-opus-5), AWS, Google Cloud, and Microsoft Foundry, it's priced at $5 per million input tokens and $25 per million output tokens, with a 'Fast mode' option. Opus 5 features a 1M token context window, 128k max output tokens, and supports mid-conversation tool changes (beta) and a new 'default' fallbacks mode (beta). It's also integrated into GitHub Copilot for Pro+, Max, Business, and Enterprise users.

https://www.anthropic.com/news/claude-opus-5